new observation properties for testing of technical limitations

environments/utility_classes.py

@@ -1,7 +1,24 @@
-from typing import NamedTuple
+from enum import Enum
+from typing import NamedTuple, Union
+
+
+class AgentRenderOptions(object):
+    SEPERATE = 'each'
+    COMBINED = 'combined'
+    LEVEL = 'lvl'
+    NOT = 'not'
 
 
 class MovementProperties(NamedTuple):
     allow_square_movement: bool = True
     allow_diagonal_movement: bool = False
     allow_no_op: bool = False
+
+
+class ObservationProperties(NamedTuple):
+    render_agents: AgentRenderOptions = AgentRenderOptions.SEPERATE
+    omit_agent_self: bool = True
+    additional_agent_placeholder: Union[None, str, int] = None
+    cast_shadows = True
+    frames_to_stack: int = 0
+    pomdp_r: int = 0